For engines from 300-800 HP. The GP-302 Series high speed oil transfer systems service multiple engines, transmissions and generators. Utilizing bronze gears and stainless steel shaft, the GP-302 system transfers lube oil, diesel fuel or water through full flow valves at a rate up to 3 gallons per minute. Full flow 1/2” chrome plated brass valves and 1/2” SAE male flare inlet fitting. Operation is intuitive. The flow direction is the same as the switch. After draining, flip the switch to fill with clean fluid. 1/2" NPT female valve fittings 1/2" SAE male flare pump connector fitting 3 Valve Oil Change System $874.00 4 Valve Oil Change System 12/24 Volt $954.00 5 Valve manifold system 12/24 Volt $995.00 If you have any questions, please email them to: info@enginegearonline.com